External C2 (Third-party Command and Control)

Cobalt Strike’s External Command and Control (External C2) interface allows third-party programs to act as a communication layer between Cobalt Strike and its Beacon
payload.

A beta of this feature and specification has existed since Cobalt Strike 3.6 (it's implemented in your copy of Cobalt Strike). The specification is not considered final and supported yet. This feature is still under development and consideration.

If you'd like to try it out now, please consult the External C2 specification.